Mega time warp
We've flown 7,364 miles, ytaveling from Shanghai, China to New York City, USA between 6 and 11P on the same day, this is the principal reason why human beings suffer from jet-lag and then sleep deprivation quickly kicks in.
It is called desynchronosis, or flight fatigue, and its a temporary disorder that causes insomnia, and other symptoms as a result of air travel across time zones. It is considered a circadian rhythm sleep disorder, which is a big time disruption of the internal body clock.